w^2+6w-131=0

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Solution for w^2+6w-131=0 equation:


Simplifying
w2 + 6w + -131 = 0

Reorder the terms:
-131 + 6w + w2 = 0

Solving
-131 + 6w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '131' to each side of the equation.
-131 + 6w + 131 + w2 = 0 + 131

Reorder the terms:
-131 + 131 + 6w + w2 = 0 + 131

Combine like terms: -131 + 131 = 0
0 + 6w + w2 = 0 + 131
6w + w2 = 0 + 131

Combine like terms: 0 + 131 = 131
6w + w2 = 131

The w term is 6w.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6w + 9 + w2 = 131 + 9

Reorder the terms:
9 + 6w + w2 = 131 + 9

Combine like terms: 131 + 9 = 140
9 + 6w + w2 = 140

Factor a perfect square on the left side:
(w + 3)(w + 3) = 140

Calculate the square root of the right side: 11.832159566

Break this problem into two subproblems by setting 
(w + 3) equal to 11.832159566 and -11.832159566.

Subproblem 1

w + 3 = 11.832159566 Simplifying w + 3 = 11.832159566 Reorder the terms: 3 + w = 11.832159566 Solving 3 + w = 11.832159566 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + w = 11.832159566 + -3 Combine like terms: 3 + -3 = 0 0 + w = 11.832159566 + -3 w = 11.832159566 + -3 Combine like terms: 11.832159566 + -3 = 8.832159566 w = 8.832159566 Simplifying w = 8.832159566

Subproblem 2

w + 3 = -11.832159566 Simplifying w + 3 = -11.832159566 Reorder the terms: 3 + w = -11.832159566 Solving 3 + w = -11.832159566 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + w = -11.832159566 + -3 Combine like terms: 3 + -3 = 0 0 + w = -11.832159566 + -3 w = -11.832159566 + -3 Combine like terms: -11.832159566 + -3 = -14.832159566 w = -14.832159566 Simplifying w = -14.832159566

Solution

The solution to the problem is based on the solutions from the subproblems. w = {8.832159566, -14.832159566}

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